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남태규,이주형,이난형,김삼수,노석균 영남대학교 지역발전연구소 1996 새마을지역개발연구 Vol.18 No.-
In order to analysis of colour difference in dyeing process of the production field, several dyestuffs were selected for examine pH independance, step dyeing and migration test. And another investigation also carried out how much causes colour difference to insufficient washing process a t pre-treatment process. The results were as follows. 1. All used dyestuffes behavior showed high dye-up take a t the low pH condition. 2. In the examination of pH independence, C. I. Acid Red 57 and C. I. Acid Yellow 199 dyestuffs were exception behavior to used all dyestuffs. 3. By step dyeing results, mixed system of C. I. Acid blue 62 and C. I. Acid Red 57 have a good color reproducibility.
A Study on Earth-Moon Transfer Orbit Design
No, Tae-Soo,Lee, Ji-Marn,Jeon, Gyeong-Eon,Lee, Dae-Ro,Kim, Ghang-Ho The Korean Society for Aeronautical and Space Scie 2012 International Journal of Aeronautical and Space Sc Vol.13 No.1
Optimal transfer trajectories based on the planar circular restricted three body problem are designed by using mixed impulsive and continuous thrust. Continuous and dynamic trajectory optimization is reformulated in the form of discrete optimization problem. This is done by the method of direct transcription and collocation. It is then solved by using nonlinear programming software. Two very different transfer trajectories can be obtained by the different combinations of the design parameters. Furthermore, it was found out that all designed trajectories permit a ballistic capture by the Moon's gravity. Finally, the required thrust profiles are presented and they are analyzed in detail.
Dynamics Modeling and Simulation of Korean Communication, Ocean, and Meteorology Satellite
No, Tae-Soo,Lee, Sang-Uk,Kim, Sung-Ju The Korean Society for Aeronautical and Space Scie 2007 International Journal of Aeronautical and Space Sc Vol.8 No.2
COMS(Communication, Oceanography, and Meteorology Satellite) is the first Korean multi-purpose satellite which is planned to be deployed at the altitude of geosynchronous orbit above the Korean peninsular. Noting that COMS is composed of the main BUS structure, two deployable solar panels, one yoke, five reactions wheels, COMS is treated as a collection of 9 bodies and its nonlinear equations of motion are obtained using the multi-body dynamics approach. Also, a computer program is developed to analyze the COMS motion during the various mission phase. Quite often, the equations of motion have to be derived repeatedly to reflect the fact that the spacecraft dynamics change as its configuration, and therefore its degree of freedom varies. However, the equations of motion and simulation software presented in this paper are general enough to represent the COMS dynamics of various configurations with a minimum change in input files. There is no need to derive the equations of motion repeatedly. To show the capability of the simulation program, the spacecraft motion during the solar array partial and full deployment has been simulated and the results are summarized in this paper.
Dynamics Modeling and Simulation of Korean Communication, Ocean, and Meteorology Satellite
Tae Soo No,Sanguk Lee,Sung Ju Kim 한국항공우주학회 2007 International Journal of Aeronautical and Space Sc Vol.8 No.2
COMS (Communication, Oceanography, and Meteorology Satellite) is the first Korean multi-purpose satellite which is planned to be deployed at the altitude of geosynchronous orbit above the Korean peninsular. Noting that COMS is composed of the main BUS structure, two deployable solar panels, one yoke, five reactions wheels, COMS is treated as a collection of 9 bodies and its nonlinear equations of motion are obtained using the multi-body dynamics approach. Also, a computer program is developed to analyze the COMS motion during the various mission phase. Quite often, the equations of motion have to be derived repeatedly to reflect the fact that the spacecraft dynamics change as its configuration, and therefore its degree of freedom varies. However, the equations of motion and simulation software presented in this paper are general enough to represent the COMS dynamics of various configurations with a minimum change in input files. There is no need to derive the equations of motion repeatedly. To show the capability of the simulation program, the spacecraft motion during the solar array partial and full deployment has been simulated and the results are summarized in this paper.
Longitudinal Spacing Control of Vehicles in a Platoon
No, Tae-Soo,Chong, Kil-To Institute of Control 2000 Transaction on control, automation and systems eng Vol.2 No.2
The Lyapunov stability theorem is used to derive a control law that can be used to control the spacing between vehicles in a platoon. A third order system is adopted to model the vehicle and power-train dynamics. In addition, the concept of
A Study on Earth-Moon Transfer Orbit Design
Tae Soo No,Ji Marn Lee,Gyeong Eon Jeon,Daero Lee,Ghangho Kim 한국항공우주학회 2012 International Journal of Aeronautical and Space Sc Vol.13 No.1
Optimal transfer trajectories based on the planar circular restricted three body problem are designed by using mixed impulsive and continuous thrust. Continuous and dynamic trajectory optimization is reformulated in the form of discrete optimization problem. This is done by the method of direct transcription and collocation. It is then solved by using nonlinear programming software. Two very different transfer trajectories can be obtained by the different combinations of the design parameters. Furthermore, it was found out that all designed trajectories permit a ballistic capture by the Moon’s gravity. Finally, the required thrust profiles are presented and they are analyzed in detail.
7 DOF 차량 모델을 이용한 자동차 현가장치 동력학 해석 및 시뮬레이션에 관한 연구
노태수(No. Tae Soo),정길도(Chong. Kil-To),홍동표(Hong. Dong-Pyo) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.6_1
Equations of motion for a 7 DOF full car model is developed and used for the analysis of passive suspension systems. The motion of a car passing unequal bumps was simulated and the results are compared with those obtained from a nonlinear multibody program, MBOSIM. The frequency response to road disturbance input was used to evaluate the performance of a passive suspension design. The resulting linear equations of motion may be used in designing an active suspension system and the nonlinear simulation capability of MBOSIM will be useful for the controller verification and further analysis.<br/> <br/>